package com.example.demo.config;

import org.springframework.security.access.AccessDeniedException;
import org.springframework.security.access.ConfigAttribute;
import org.springframework.security.authentication.InsufficientAuthenticationException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.security.core.GrantedAuthority;
import org.springframework.security.web.FilterInvocation;
import org.springframework.stereotype.Component;

import java.util.Collection;

public class AccessDecisionManager implements org.springframework.security.access.AccessDecisionManager {
    @Override
    public void decide(Authentication authentication, Object object,
                       Collection<ConfigAttribute> configAttributes)
            throws AccessDeniedException, InsufficientAuthenticationException {
        Collection<? extends GrantedAuthority> auths = authentication.getAuthorities();
        for (ConfigAttribute configAttribute:configAttributes){
            if("ROLE_LOGIN".equals(configAttribute.getAttribute())
                    &&authentication instanceof UsernamePasswordAuthenticationToken)
            { System.out.println("ROLE_LOGIN"+" "+ ((FilterInvocation) object).getRequestUrl());
                return;}
            for(GrantedAuthority grantedAuthority:auths){
                if(grantedAuthority.getAuthority().equals(configAttribute.getAttribute()))
                {  System.out.println("you quanxian");
                    return;}
            }
        }
        System.out.println("权限不足");
        throw new AccessDeniedException("权限不足");
    }

    @Override
    public boolean supports(ConfigAttribute attribute) {
        return true;
    }

    @Override
    public boolean supports(Class<?> clazz) {
        return true;
    }
}
